Device Size Comparison

iPhone 15 vs iPhone 17 Air

Size Comparison Summary

iPhone 15 measures 71.6 × 147.6 × 7.8 mm and weighs 171 g. iPhone 17 Air measures 74.7 × 156.2 × 5.64 mm and weighs 165 g. By overall front-face area, iPhone 17 Air is larger than iPhone 15 (about 1100.0 mm² difference). iPhone 15 is 6 g heavier than iPhone 17 Air. All figures use official millimeter dimensions.

Dimensions Table

Dimension	iPhone 15	iPhone 17 Air	Difference
Width	71.6 mm	74.7 mm	+3.1 mm
Height	147.6 mm	156.2 mm	+8.6 mm
Thickness	7.8 mm	5.64 mm	-2.16 mm
Weight	171 g	165 g	-6 g

Which is Bigger?

Overall size (width × height): iPhone 17 Air has the larger footprint at 74.7 × 156.2 mm vs 71.6 × 147.6 mm (+1099.98 mm² area).
Width: iPhone 17 Air is wider (74.7 mm vs 71.6 mm, +3.1 mm).
Height: iPhone 17 Air is taller (156.2 mm vs 147.6 mm, +8.6 mm).

Weight Comparison

iPhone 15 weighs 171 g and iPhone 17 Air weighs 165 g — a difference of 6 g. iPhone 15 is 3.6% heavier than iPhone 17 Air.

Thickness Comparison

iPhone 15 is 7.8 mm thick and iPhone 17 Air is 5.64 mm thick (+2.16 mm). iPhone 15 is the thicker device in hand.

FAQ

Which is bigger, iPhone 15 or iPhone 17 Air?: iPhone 17 Air has the larger overall footprint (74.7 × 156.2 mm) compared with iPhone 15 (71.6 × 147.6 mm).
How much heavier is iPhone 15 than iPhone 17 Air?: iPhone 15 weighs 171 g and iPhone 17 Air weighs 165 g — a difference of 6 g.
Which device is thinner, iPhone 15 or iPhone 17 Air?: iPhone 17 Air is thinner at 5.64 mm vs 7.8 mm for iPhone 15.
What is the width difference between iPhone 15 and iPhone 17 Air?: iPhone 15 is 71.6 mm wide and iPhone 17 Air is 74.7 mm wide (+3.1 mm).
Can I compare iPhone 15 and iPhone 17 Air visually?: Yes. Use the Sizology comparison tool to overlay or place both devices side by side at true millimeter scale with official dimensions.

Related Comparisons

Open iPhone 15 and iPhone 17 Air in the comparison tool